YABER 4000A Portable Car Battery Jump Starter for Gas and Diesel Engines

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1. glori black Verified Buyer – 29 October 2024

   This battery charger is an absolute must-have for any driver! I’ve used it a few times, it works great and worth every penny! I originally bought it for my teen driver but loved it so much that I ended up purchasing one for my nephew, myself, and my husband. We’ve all used ours, and it has been a lifesaver.

   It comes with a built-in flashlight, a USB charging port, and, of course, jumper cables. It’s incredibly easy to use—the battery life is awesome! Just charge it for four hours every few months, and it’s ready to go. It’s a compact, lightweight powerhouse, that’s small enough to fit in your glove box, console, or trunk.

   The best part? You don’t need another car to jump-start your vehicle. It includes step-by-step instructions, making it simple even for first-time users. This charger is an essential item for anyone on the road—you’ll be glad to have it when you need it!
   

2. Marco le Roux Verified Buyer – 29 November 2024

   Works very well! About 2 charges alon a jump on a normal size car. The flash light is very handy as well
   

3. Shirley F. Verified Buyer – 8 February 2025

   Love it, so convenient was able to jump a boat an ATV and you can charge your phone!

   

4. Ashley j Mccann Verified Buyer – 10 February 2025

   My car is pretty much the car Adam Sandler sings about in, “Ode To My Car.” If it’s a slightly cold morning (in Cleveland 🙄), my battery ain’t starting my car. (Yet Autozone says it’s testing great 🤷🏻‍♀️- but undoubtedly, this is likely a problem going beyond the battery 😕) Since it arrived on November 1st, it’s started my car, saving me from being late to work, and other important places, 4 times, with no issues at all (and arrived on time!), and it’s ridiculously simple to use. You just plug the cables into the unit, connect to your battery, turn the key in the ignition, car starts, remove cables. I’ve used it to charge my devices as well, and it’s been great! I can’t attest toward the battery life of the device before needing to be recharged, because I plug it in every day at work (I’m NOT about to let this baby die!), but after being used to jump my car, it usually still has 3 lights lit up when I plug it in to begin recharging, so I’m assuming it is only using about 1/4 of it’s energy to jump a car battery. Charging devices doesn’t seem to impact it much. It’s an overall highly reliable device that hasn’t let me down yet, with pretty heavy use. I’d highly recommend to everyone, and I plan on picking up a few more as gifts for some loved ones for Christmas.

   

5. Dave Verified Buyer – 7 March 2025

   I ordered this jump starter over 6 months ago and threw it in my glove box and forgot about it. Honestly, when I first opened the box for it I thought it was too small and lightweight to work but decided to keep it anyway. I figured I could use it as a battery bank for my cell phone if needed. Well, this morning as I’m about to head to work, I find my keys in the ignition of my minivan with it turned to the “run” position thanks to my 11 year old. The battery was completely dead. I was about to freak out when I remembered I had this jump starter. After pulling it out of the glove box I again thought there was no way it would work. There a very few times I enjoy being wrong and this was one of them. It took seconds to hook up, when I did I immediately heard my door chime. I turned the key and the van started right up without hesitation. I feel as though I already made my money back with this jump starter. I highly recommend it!!

   

6. Mark Manuel Verified Buyer – 11 March 2025

   I purchased this product and at first it was a lifesaver, the product itself continues to work except now the recharge Port is broken and I cannot get a hold of the company customer service whatsoever!!
   

7. Angeliac Verified Buyer – 3 April 2025

   As hard as it tried it would not start a dead 3 L diesel Mercedes V6 regardless of what the manufacturer claims. I tried numerous times (waiting a period of time in between attempts like the manual says to do) but the cables on the connector were getting warm so I didn’t want to damage the unit. I think it will be valuable on trips (in a gasoline car or SUV) and it’s nice to be able to charge USB devices like a phone or rechargeable flashlight or the like so I will keep it. Just be aware that it may not start the vehicle you are buying it for!

   

8. txcelt Verified Buyer – 5 April 2025

   Great product and can jump start a car battery several times on one full charge. It is great because you don’t have to rely on having help or the room to have another car jump start you. I have used it as an accessory battery bank as well on camping trips. Highly recommended.
   

9. De & Sherrie Verified Buyer – 23 April 2025

   My gf has a habit of hitting the kill switch BUT forgetting to take the key out of the motorcycle! This just recently saved us when were 300+ miles out of town at a gas station when she killed the battery again lol super easy to use, just clip it on the battery, turn it on, and then literally with no wait time just turn on and start the bike, BOOM, started right up. No needing to ask strangers for help or make calls for family/friends to come save you, no paying for a tow truck. It’s super small, about the size of a cell phone but twice as thick. Get this now before you regret it. The charge lasts for MONTHS. I keep it in my saddle bag year round in FL, NO issues!